C#

e_LA wrote:

but where to create the object of settings class?

public Settings
{
    // Field containing the only instance of the class
    private static Settings onlyInstance;
 
    // Private constructor so that nothing outside this class
    // can construct it.
    private Settings(){};
 
    // Property getter to return the only ever instance of the class
    public static Instance
    {
        get
        {
            return this.onlyInstance;
        }
    }
 
    // Add your public methods and properties here
} 

Jonathan van de Veen wrote:

Doing the above will result in an InvalidOperationException with the message:
"There is already an open DataReader associated with this Command which must be closed first."